Salicylic acid is prepared from phenol by:

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(B) The preparation of salicylic acid from phenol using $CO_2$ and $NaOH$ is known as the Kolbe-Schmidt reaction.In this reaction,phenol is first conv

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Reimer-Tiemann reaction

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(B) The preparation of salicylic acid from phenol using $CO_2$ and $NaOH$ is known as the Kolbe-Schmidt reaction.In this reaction,phenol is first converted to sodium phenoxide,which then undergoes electrophilic substitution with $CO_2$ to form sodium salicylate,followed by acidification to yield salicylic acid.The reaction shown in the image uses $CCl_4$ and $NaOH$,which is the mechanism for the Reimer-Tiemann reaction (specifically the form that produces salicylic acid).Therefore,the correct answer is $(B)$.

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